The same problem with many bookmarks was reported (and has status "fix released") for Chromium as a DBus problem -> #801699. I think this could be also the case here.
* Disabling global menu bar integration addon is a workaround for me.
Ubuntu 12.04.1, Firefox 18.0.1, global menu bar integration addon 3.6.4
The same problem with many bookmarks was reported (and has status "fix released") for Chromium as a DBus problem -> #801699. I think this could be also the case here.
* Disabling global menu bar integration addon is a workaround for me.
Ubuntu 12.04.1, Firefox 18.0.1, global menu bar integration addon 3.6.4